Commit 22ca904a authored Nov 01, 2016 by Wei Yongjun Committed by David S. Miller Nov 01, 2016

genetlink: fix error return code in genl_register_family()



Fix to return a negative error code from the idr_alloc() error handling
case instead of 0, as done elsewhere in this function.

Also fix the return value check of idr_alloc() since idr_alloc return
negative errors on failure, not zero.

Fixes: 2ae0f17d ("genetlink: use idr to track families")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent e58e4159

net/netlink/genetlink.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -362,8 +362,10 @@ int genl_register_family(struct genl_family *family)

		family->id = idr_alloc(&genl_fam_idr, family,
		start, end + 1, GFP_KERNEL);
		if (!family->id)
		if (family->id < 0) {
		err = family->id;
		goto errout_locked;
		}

		err = genl_validate_assign_mc_groups(family);
		if (err)